sheldon



{Sheldons @EVUCEZ Fm mmm-Mnm Figure 3.

Witnesses Hmventor o. 1L; SHE L--'])'O'N--,' or. 1L: 0 Wv'I. L l-E N EW Yiofn K I J-Letters .Pate'nt Nod 172,920, dated December 1867,

IMPROVEMENT m mas- IO'RG'ODLINIGMILKQ.

flit: fitlptnle were in-iitflgtsi some zit1ifnirt mating part in iiJt-tfmit.

TO ALL' WHOM IT MAY CONCERN:

Be it known that I, G. SHELDOK, of Lowville, inthe county of Lewis, and State of New York, ha e invented a'netv 'and usefnl Apparatus for the Purpose of" Cooling Milk and]: do hereby declare that the following is afull, clear, and'exac t' description of the construction and operation of the same, reference being had to the annexeddrawings, making part of this specification, in 'iv hich.-' I l l l i Figures 1- and 2 are perspective views Figure 3 a perspective view of plunger is and valver.

Figure 4 a verticallsection and I I Figure 5a perspective viewer the tipping shelf t'.

a d is a receptacle for water; 6, tuhe'by-"whicha d is supplied withwat'er; a, wire forming pivots on which a turns; e, spool of tipping-shelf; ff, ratchet-\vheels gg, eatches; j k, Working-bar; ip, weights; is, plunger'; r, valve of. plunger; l, funnel; M, tin 'va t for milk; N, wooden vat for wat'er; '0 0, spacehetvv een tin and wooden vats; s, axle on'w'hich the bar turns, and at the same timewi'ndlass to eapsize the tipping-shelf; t, tipping-shelf. l l

, -The.water-receiver may he made of WOQd or metal nnd is constructed with a water-tight partition reaching nearly to the topof the receiver. Nearly nnderjthe cent f one of these compartments are thepoints of suspension, as at c. On the other side acord is fastened, connectingw ith theworking-bar at j. At the oppositeend,h, of this working-bar, is suspended'the weight 1' and plunger 7:, of weight sufiicienttojhri'ng the waterreceiver, when empty, to a level position, as shcivn in fig. 2. v

W'ater being introduced at J, fills the space 0 o, and, passing through-the pipeb, is discharged into the compartment d of. the water-receiver; W'hen this compartment is filled, the water runs'into thenext'conipar tment, where, being wholly on one side of the points of suspension, the weightat the end 7L of the working-bards soon overbalanced, and the sidea of therecciver begins to tip doi'vn. ,Asit des cends, the wat'er'accumulated in compartment d is discharged into compartment a, constantly adding to the momentum, and accelerating the descent until it begins to dischargefrom th'esec ond compartment. During this descent of the receiver, the plunger is, having a valve, 1', on top, constructed with grooves to fit thew supporting-wire, as shown 'in fig. 3, is pulled up through the milk, and the tendency to produce a vacuum causes the val-veto lose and retain the milk in the plunger, until brought above the mass of milk, when it falls, giving increased agitation to the entire vat of milk. The water being new diseharged'from the receiver, the weightz' and plunger descend, the valver rises, permitting the air to escape and the plunger to sink readily in the milk. I I I When it is desired to stop the agitation after the milk-is coolegl, and permit the cream to rise, the tippingsheli' t is fixed, as shown in fig. 2, and the weight 11 is put upon the shelf, as shown in fig.- 5. Thecord connecting the working-bar with p is sufficiently long to allow the bar tOjVOXli freely, without disengaging the weight.

from its shelf. The requirodamount of cord is wound around the spool e, and the connection made with the axle s. A the end j of-t he working-bar descends, thecatch g on it, coming in contact with the'ratchet-uheel near it,'causes the axle s to make part of a revolution, winding up a portion-of the cord and unwinding the same amount from the spool c. As the end j ascends, the catch in' the'opposite ratchet prevents the Windlass moving backward, when, by the-continued vibrations of the working-bar, the windlassis caused to revolve, until 'all the cord is unwound from the spool e, the shelf is caused to' tip, .as shown in fig. 1, sliding the weightpfrom it, and causing the plunger to remain out of the milk. l I

What I claim as my invention, anddesire to secure by Letters Patent, is-- 1. The combination of the water-receiver a d with the connectingarms, and the valve r attached to the plunger 1:, as and for the purpose specified. i

2. The comhina-tion'of the ratchet-wheels ff, the Windlass s,'the spool c, the tipping-shelf t, and weight 12,

as constructed'and arranged for the purpose ofstopping the agitation at any given time.

' O. L. SHELDON.

Witnesses: 7 DAVID T. MARTIN, Jr.-, WM. H. Lauren. 

